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G5X3 on a 110 LSA

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Old Oct 3, 2006 | 08:57 AM
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Question G5X3 on a 112 LSA

I am wanting to put a cam in my 99 SS and was thinking about the G5X3. I know this is one of the larger cams for the LS1, but I know that they make good power as well. I don't want to rev my motor past 6500 since my car isn't a track car. If I had this cam cut on a 112 LSA with 4 degrees advance built in, would it be right for me? Will the 4 degrees advance cause an issue with clearance with stock heads? I have been playing around with a bunch of different cam grinds from all of our sponsors with Engine Analyzer and this one seems to produce the hp/tq curve I am after. Any insight would be appreciated.

Last edited by 67SS&99Z28; Oct 3, 2006 at 09:07 AM.
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Old Oct 3, 2006 | 09:12 AM
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The G5X-3 normally comes with 4 degrees of advance already ground in. This is one of the reasons why it makes such good dynamic compression & excellent mid-range torque, yet good top-end power.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
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Old Oct 3, 2006 | 09:32 AM
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Thanks Patrick. I think I'm finally starting to understand some of this cam stuff. I didn't know that LG ground their cams with 4 degrees advance already built in. This is good to know. I made a comparison graph of the grind you recommended to me and the LG. They were within 1 hp as far as average hp and 5 ft lbs on average tq. You know your stuff on cam grinds
Attached Thumbnails G5X3 on a 110 LSA-comparison-graph..jpg  

Last edited by 67SS&99Z28; Oct 3, 2006 at 09:40 AM.
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Old Oct 3, 2006 | 12:46 PM
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Originally Posted by Patrick G
The G5X-3 normally comes with 4 degrees of advance already ground in. This is one of the reasons why it makes such good dynamic compression & excellent mid-range torque, yet good top-end power.
So does that make their 112 LSA cams a 112+4 (108 ICL) or 116+4 (112 ICL)?
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Old Oct 3, 2006 | 01:11 PM
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Originally Posted by N4cer
So does that make their 112 LSA cams a 112+4 (108 ICL) or 116+4 (112 ICL)?
112 LSA +4 advance = 108 ICL
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Old Oct 3, 2006 | 01:48 PM
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Originally Posted by hammertime
112 LSA +4 advance = 108 ICL
What he said!
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2022 Cadillac Escalade 6.2L A10 S&B CAI, Corsa catback.
2023 Corvette 3LT Z51 soon to be modified.
Custom LSX tuning in person or via email press here.

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Old Oct 3, 2006 | 01:58 PM
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Originally Posted by Patrick G
What he said!
So what does that make a 110+2 as far as ICL is concerned?
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Old Oct 3, 2006 | 03:41 PM
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That's a 108. I just wasn't sure exactly how LG had worked it all out. Thanks for the input on that.
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